Answer:
7.8
Step-by-step explanation:
divide 78 by ten, or just move the decimal one place to the left.
Answer: $7.80
Step-by-step explanation: If 10 candy bars cost $78, we can find the cost of 1 candy bar by dividing 78 by 10.
78 ÷ 10 = 7.80
Therefore, 1 candy bar would cost $7.80.